Here is a PHP Script to login to IMAP server.

Mailboxes\n";

$folders = imap_listmailbox($mbox, "{imap.example.org:143}", "*");

if ($folders == false) {
    echo "Call failed
\n";
} else {
    foreach ($folders as $val) {
        echo $val . "
\n";
    }
}

echo "
Headers in INBOX
\n";
$headers = imap_headers($mbox);

if ($headers == false) {
    echo "Call failed
\n";
} else {
    foreach ($headers as $val) {
        echo $val . "
\n";
    }
}

imap_close($mbox);

See PHP